Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rh3 win in 3 half-moves
2 Kf3 win in 7 half-moves
3 Kf4 draw
4 Kf5 draw
5 Kgg3 draw
6 Kgg5 draw
7 Kgh3 draw
8 Kgh5 draw
9 Khh3 draw
10 Khh5 draw
11 Rb1 draw
12 Rg1 draw
13 Rh2 draw
14 Khg3 loss in 2 half-moves
15 Khg5 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Rf1 loss in 2 half-moves